DirectorySearch er - whats wrong with this?!

[dhnriverside]

Hi

I'm getting the following error in my code...

"Exception Details: System.Runtime. InteropServices .COMException: The server
does not support the requested critical extension"

Here's the function...
int listc;
string cs;
DirectoryEntry entry = new DirectoryEntry( "LDAP://" +
ConfigurationSe ttings.AppSetti ngs.Get("System _ActiveDirPath" ));
DirectorySearch er mySearcher = new DirectorySearch er(entry);
mySearcher.Filt er = ("(objectClass= user)");
mySearcher.Sort = new SortOption("Fir stName", SortDirection.A scending);
listc = 1;
foreach(SearchR esult resEnt in mySearcher.Find All())
{
try
{
DirectoryEntry de = resEnt.GetDirec toryEntry();
if((de.Properti es["DisplayNam e"].Value != null) &&
(de.Properties["givenName"].Value != null) && (de.Properties["sn"].Value !=
null))
{
ListItem adItem = new ListItem();
adItem.Text = de.Properties["givenName"].Value.ToString () + " " +
de.Properties["sn"].Value.ToString ();
adItem.Value = de.Properties["sAMaccountname "].Value.ToString ();
ddlDartsContact .Items.Insert(l istc, adItem);
adItem = null;
listc++;
}
}
finally {}

I *think* the problem is to do with the line

mySearcher.Sort = new SortOption("Fir stName", SortDirection.A scending);

Any help/ideas as to what's wrong appreciated!

Cheers
Dan

[Scott Allen]

Hi Dan:

I know there is some sort operations that can cause this error (see
http://support.microsoft.com/?kbid=842637). As the article suggests -
you could sort the entries client side.

--
Scott
http://www.OdeToCode.com/blogs/scott/
On Mon, 21 Mar 2005 03:35:05 -0800, dhnriverside <da*@musoswire. com>
wrote:

Hi

I'm getting the following error in my code...

"Exception Details: System.Runtime. InteropServices .COMException: The server
does not support the requested critical extension"

Here's the function...
int listc;
string cs;
DirectoryEnt ry entry = new DirectoryEntry( "LDAP://" +
ConfigurationS ettings.AppSett ings.Get("Syste m_ActiveDirPath "));
DirectorySearc her mySearcher = new DirectorySearch er(entry);
mySearcher.Fil ter = ("(objectClass= user)");
mySearcher.Sor t = new SortOption("Fir stName", SortDirection.A scending);
listc = 1;
foreach(Search Result resEnt in mySearcher.Find All())
{
try
{
DirectoryEnt ry de = resEnt.GetDirec toryEntry();
if((de.Propert ies["DisplayNam e"].Value != null) &&
(de.Properti es["givenName"].Value != null) && (de.Properties["sn"].Value !=
null))
{
ListItem adItem = new ListItem();
adItem.Text = de.Properties["givenName"].Value.ToString () + " " +
de.Propertie s["sn"].Value.ToString ();
adItem.Value = de.Properties["sAMaccountname "].Value.ToString ();
ddlDartsContac t.Items.Insert( listc, adItem);
adItem = null;
listc++;
}
}
finally {}

I *think* the problem is to do with the line

mySearcher.Sor t = new SortOption("Fir stName", SortDirection.A scending);

Any help/ideas as to what's wrong appreciated!

Cheers
Dan

[Pierre-Andre van Leeuwen]

Are you sure that there is an attribute called FirstName in the user class?
It is usually called givenName

"dhnriversi de" <da*@musoswire. com> wrote in message
news:71******** *************** ***********@mic rosoft.com...

Hi

I'm getting the following error in my code...

"Exception Details: System.Runtime. InteropServices .COMException: The server does not support the requested critical extension"

Here's the function...
int listc;
string cs;
DirectoryEntry entry = new DirectoryEntry( "LDAP://" +
ConfigurationSe ttings.AppSetti ngs.Get("System _ActiveDirPath" ));
DirectorySearch er mySearcher = new DirectorySearch er(entry);
mySearcher.Filt er = ("(objectClass= user)");
mySearcher.Sort = new SortOption("Fir stName", SortDirection.A scending);
listc = 1;
foreach(SearchR esult resEnt in mySearcher.Find All())
{
try
{
DirectoryEntry de = resEnt.GetDirec toryEntry();
if((de.Properti es["DisplayNam e"].Value != null) &&
(de.Properties["givenName"].Value != null) && (de.Properties["sn"].Value != null))
{
ListItem adItem = new ListItem();
adItem.Text = de.Properties["givenName"].Value.ToString () + " " +
de.Properties["sn"].Value.ToString ();
adItem.Value = de.Properties["sAMaccountname "].Value.ToString ();
ddlDartsContact .Items.Insert(l istc, adItem);
adItem = null;
listc++;
}
}
finally {}

I *think* the problem is to do with the line

mySearcher.Sort = new SortOption("Fir stName", SortDirection.A scending);

Any help/ideas as to what's wrong appreciated!

Cheers
Dan